Graphite sheet cutting chip cleaning system

Abstract

The utility model relates to the field of generators, in particular to a graphite sheet cutting chip cleaning system which comprises a milling cutter and a cutter handle, and the cutter handle is provided with an installation head for fixing the milling cutter. Flushing holes are formed in the milling cutter and comprise air inlets and air outlets, the air inlets are formed in the top of the milling cutter, and the air outlets are formed in the periphery of the milling cutter; the cutter handle comprises a rotating part and a fixed part, the mounting head is arranged at the bottom end of the rotating part, the rotating part is sleeved with the fixed part, and a cavity is formed between the rotating part and the fixed part; the rotating part and the fixed part are provided with rotating sealing structures, and the rotating part, the fixed part and the rotating sealing structures define an airtight cavity. An air supply port communicated with the cavity is formed in the mounting head, and the air supply port is communicated with an air inlet of a milling cutter in the mounting head; a butt joint opening connected with a high-pressure air pipe is formed in the fixed part and communicated with the cavity, and then the butt joint opening is communicated with the flushing hole. And the cuttings are blown away to prevent the graphite cuttings from being clamped in the milling cutter.

Description

Technical Field

[0001] This utility model relates to the field of graphite workpiece processing, and in particular to a chip cleaning system. Background Technology

[0002] High-density, high-strength carbon graphite material is a material with advantages such as high strength, low resistivity, good thermal shock resistance, high temperature resistance, oxidation resistance, and high heating efficiency, making it the preferred heating material in single-crystal silicon furnace heaters.

[0003] However, when high-density, high-strength carbon graphite materials are milled, graphite chips are easily stuck in the milling cutter and are difficult to remove. If the chips are not removed in time, it can lead to uneven milling and, in severe cases, damage to the cutting tool. Utility Model Content

[0004] In view of the problems existing in the prior art, the present invention is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution;

[0006] A graphite flake chip removal system includes a milling cutter and a tool holder, wherein the tool holder is provided with a mounting head for fixing the milling cutter;

[0007] The milling cutter is provided with a flushing hole, which includes an air inlet and an air outlet. The air inlet is located on the top of the milling cutter, and the air outlet is located around the periphery of the milling cutter.

[0008] The tool holder includes a rotating part and a fixed part. The mounting head is disposed at the bottom end of the rotating part, and the fixed part is sleeved on the outside of the rotating part. A cavity is formed between the rotating part and the fixed part.

[0009] The rotating part and the fixed part have a rotary sealing structure, which together form an airtight cavity.

[0010] The mounting head is provided with an air supply port that communicates with the cavity, and the air supply port is connected to the air inlet of the milling cutter in the mounting head;

[0011] The fixed part is provided with a connector for connecting a high-pressure air pipe. The connector is connected to the cavity and then to the flushing hole.

[0012] The above design, firstly, incorporates a flushing hole with an air inlet that can be connected to high-pressure air. This high-pressure air is then blown out through the air outlets around the milling cutter, effectively removing the graphite material during milling of high-density, high-strength carbon graphite and preventing graphite chips from getting stuck in the milling cutter. Secondly, by incorporating a rotating and a fixed section on the tool holder, with the rotating section connecting to the milling cutter and the fixed section connecting to the high-pressure air pipe, air can be supplied to the flushing hole even as the tool holder rotates, ensuring continuous airflow from the flushing hole's outlet during use and maintaining the effect of blowing away graphite chips. Finally, the rotating and fixed sections feature a rotary sealing structure to guarantee the strength of the air pressure and maintain the airflow pressure, further ensuring the effectiveness of blowing away graphite chips.

[0013] Preferably, the rotary sealing structure includes two sealing bearings, the inner rings of which are fitted onto the outer wall of the rotating part, and the inner wall of the fixed part covers the outer rings of the two sealing bearings. Thus, the outer wall of the rotating part, the inner wall of the fixed part, and the two sealing bearings form an airtight cavity. The sealing bearing is a key component used to seal rotating equipment, typically used on rotating shafts to prevent gas or liquid leakage. The two sealing bearings ensure that the airtightness of the cavity is maintained while the rotating part rotates at high speed.

[0014] Furthermore, the outer wall of the rotating part is provided with two annular grooves, and the two sealed bearings are respectively embedded in the two annular grooves; the inner wall of the fixed part is provided with two second annular grooves, which enclose the two sealed bearings. By providing the annular grooves and the other annular groove, a step is created at the installation point of the sealed bearings, improving the airtightness of the cavity.

[0015] Preferably, the milling cutter includes a cutting edge section and a mounting section, with the cutting edge section disposed below the mounting section;

[0016] The flushing hole includes an air inlet channel and an air outlet channel, the air inlet channel and the air outlet channel are connected, the inlet of the air inlet channel is the air inlet port, and the outlet of the air outlet channel is the air outlet port.

[0017] The air outlet is located around the blade section;

[0018] The cutting edge has at least two layers of air outlets arranged vertically, with at least two air outlets in each layer surrounding the air inlet channel. By arranging multiple air outlets around the cutting edge, the chips around the cutting edge can be blown out evenly, ensuring that graphite chips do not get stuck in the cutting edge gap of the milling cutter.

[0019] Preferably, the distance between the bottom air outlet and the bottom surface of the milling cutter is 0.5-1 cm;

[0020] The diameter of the air inlet channel is 0.25-0.5 cm, and the diameter of the air outlet channel is 0.1-0.2 cm. This ensures that the high-pressure air blown out from the bottom air outlet can directly blow away the graphite chips cut off by the bottom edge of the milling cutter. The smaller diameter of the air outlet channel can increase the pressure of the gas blown out from the air outlet channel.

[0021] Preferably, the air inlet channel extends along the rotation center of the milling cutter; the straight air inlet channel facilitates the smooth entry of high-pressure gas.

[0022] Preferably, the angle between the central axis of the air outlet channel and the rotation center of the milling cutter is 20°-40°, and the connection section between the air outlet channel and the air inlet channel is higher than the air outlet of the air outlet channel. The downward tilt of the air outlet channel ensures that the gas blown out of the air outlet points downward, effectively blowing away graphite chips and ensuring that the chips are stuck in the milling cutter.

[0023] Preferably, the mounting head has a receiving groove for accommodating the milling cutter mounting section, the air supply port is located at the bottom of the receiving groove, the air supply port is connected to the cavity, and the air supply port is connected to the air inlet of the milling cutter in the receiving groove. Installing the milling cutter by providing a receiving groove can improve the airtightness between the air inlet and air supply port after the milling cutter is installed.

[0024] Preferably, a sealing ring is provided in the receiving groove, which is placed between the milling cutter and the bottom of the receiving groove. The sealing ring is embedded in the bottom of the receiving groove and coaxially arranged with the air supply port. The inner diameter of the sealing ring is larger than the diameter of the air supply port and the air inlet channel. The sealing ring further improves the airtightness between the air inlet and the air supply port.

[0025] Preferably, the rotating part has at least four vents connected to the cavity, and the air supply port is connected to the cavity through the at least four vents. The at least four vents are arranged around the central axis of the rotating part. When the rotating part rotates, the gas in the cavity is transported through the four vents, improving gas transport efficiency and ensuring that high-pressure gas can be smoothly injected from the air supply port into the air inlet. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0027] Figure 1 A schematic diagram of the milling cutter and tool holder assembly structure of a graphite flake chip cleaning system according to an embodiment of this utility model;

[0028] Figure 2 The graphite flake chip cleaning system provided in one embodiment of this utility model Figure 1 A schematic diagram of the cross-sectional structure;

[0029] Figure 3 A schematic diagram of the milling cutter structure of a graphite flake chip cleaning system according to an embodiment of this utility model. Detailed Implementation

[0030] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in less than one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0034] Example 1

[0035] Reference Figures 1-3 A graphite flake chip cleaning system includes a milling cutter 1 and a tool holder 2, wherein the tool holder 2 is provided with a mounting head 211 for fixing the milling cutter 1.

[0036] The milling cutter 1 has a flushing hole 11, which includes an air inlet 111 and an air outlet 112. The air inlet 111 is located at the top of the milling cutter 1, and the air outlet 112 is located around the periphery of the milling cutter 1. The tool holder 2 includes a rotating part 21 and a fixed part 22. The mounting head 211 is located at the bottom of the rotating part 21, and the fixed part 22 is sleeved on the outside of the rotating part 21, forming a cavity 23 between the rotating part 21 and the fixed part 22. The rotating part 21 and the fixed part 22 have a rotary sealing structure, which together form an airtight cavity 23. The mounting head 211 has an air supply port 212 that communicates with the cavity 23, and the air supply port 212 is connected to the air inlet 111 of the milling cutter 1 in the mounting head 211. The fixed part 22 has a connector 221 for connecting a high-pressure air pipe, which is connected to the cavity 23 and then to the flushing hole 11. Firstly, by setting a flushing hole 11, the air inlet 111 of the flushing hole 11 can be connected to high-pressure air. The high-pressure air is blown out through the air outlet 112 around the milling cutter 1, which can blow away the graphite material cut off when the milling cutter 1 is milling high-density and high-strength carbon graphite material, preventing graphite chips from getting stuck in the milling cutter 1. Secondly, by setting a rotating part 21 and a fixed part 22 on the tool holder 2, the milling cutter 1 is connected through the rotating part 21, and the high-pressure air pipe is connected through the fixed part 22, so that the tool holder 2 can also supply air to the flushing hole 11 when driving the milling cutter 1 to rotate, so that the air outlet 112 of the flushing hole 11 of the milling cutter 1 can continuously spray air during use, maintaining the effect of blowing away graphite chips. Finally, the rotating part 21 and the fixed part 22 have a rotational sealing structure to ensure the strength of the air pressure and maintain the pressure of the air jet, further ensuring the effect of blowing away graphite chips.

[0037] The rotary sealing structure includes two sealing bearings 24. The inner rings of the two sealing bearings 24 are fitted onto the outer wall of the rotating part 21. The inner wall of the fixed part 22 fits over the outer rings of the two sealing bearings 24. Thus, the outer wall of the rotating part 21, the inner wall of the fixed part 22, and the two sealing bearings 24 form an airtight cavity 23. The sealing bearings 24 are a key component for sealing rotating equipment. They are usually used on rotating shafts to prevent gas or liquid leakage. The two sealing bearings 24 can ensure that the airtightness of the cavity 23 is maintained while the rotating part 21 rotates at high speed.

[0038] The outer wall of the rotating part 21 is provided with two annular grooves, and the two sealed bearings 24 are respectively embedded in the two annular grooves; the inner wall of the fixed part 22 is provided with two second annular grooves, and the two second annular grooves cover the two sealed bearings 24. By providing the annular grooves and the other annular groove, a step is created at the installation location of the sealed bearings 24, thereby improving the airtightness of the cavity 23.

[0039] The mounting head 211 has a receiving groove for accommodating the mounting section of the milling cutter 1. An air supply port 212 is located at the bottom of the receiving groove and is connected to the cavity 23. The air supply port 212 is also connected to the air inlet 111 of the milling cutter 1 in the receiving groove. By setting the receiving groove to install the milling cutter 1, the air tightness between the air inlet 111 and the air supply port 212 after the milling cutter 1 is installed can be improved.

[0040] A sealing ring 214 is provided in the receiving groove, which is placed between the milling cutter 1 and the bottom of the receiving groove. The sealing ring 214 is embedded in the bottom of the receiving groove and is coaxially arranged with the air supply port 212. The inner diameter of the sealing ring 214 is larger than the diameter of the air supply port 212 and the air inlet channel 113. The air tightness between the air inlet port 111 and the air supply port 212 is further improved by setting the sealing ring 214.

[0041] In use, first, the tool holder 2 is installed into the machine tool's spindle. The fixing part 22 is fixed to the milling cutter 1 on the machine tool's frame with bolts. The milling cutter 1 is fixed to the receiving groove via the mounting head 211. The air supply port 212 in the mounting head 211 is connected to the air inlet 111 of the milling cutter 1 in the mounting head 211. A clamping component is provided at the bottom of the mounting head 211. Tightening the clamping component clamps the milling cutter 1. The bottom of the receiving groove is connected to the air supply port 212 and the air inlet 111 by a sealing ring 214. Then, the interface 221 is connected to the high-pressure air pipe. High-pressure air enters the cavity 23 and is then injected into the air inlet 111 through the air supply port 212. High-pressure air injected into the flushing hole 11 can continuously spray air out of the air port 112. When the milling cutter 1 is milling high-density, high-strength carbon graphite material, the cut graphite material is blown away, preventing graphite chips from getting stuck in the milling cutter 1 and ensuring efficient and uniform continuous processing by the milling cutter 1.

[0042] Example 2

[0043] Reference Figure 2 and Figure 3 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0044] The milling cutter 1 includes a cutting edge section and a mounting section, with the cutting edge section located below the mounting section. The flushing hole 11 includes an air inlet channel 113 and an air outlet channel 114, which are connected. The inlet of the air inlet channel 113 is the air inlet port 111, and the outlet of the air outlet channel 114 is the air outlet port 112. The air outlet ports 112 are located around the cutting edge section. At least two layers of air outlet ports 112 are arranged vertically on the cutting edge section, with at least two outlet ports 112 arranged around the air inlet channel 113 in each layer. By arranging multiple air outlet ports 112 around the cutting edge section, the chips around the cutting edge section can be blown out evenly, ensuring that graphite chips do not get stuck in the kerf of the milling cutter 1.

[0045] The distance between the bottom air outlet 112 and the bottom surface of the end mill 1 is 0.5-1 cm; the diameter of the air inlet 113 is 0.25-0.5 cm, and the diameter of the air outlet 114 is 0.1-0.2 cm. This ensures that the high-pressure air blown out of the bottom air outlet 112 can directly blow away the graphite chips cut off by the bottom edge of the end mill 1. The smaller diameter of the air outlet 114 can increase the pressure of the gas blown out of the air outlet 114.

[0046] The air inlet channel 113 extends along the rotation center of the milling cutter 1; the straight air inlet channel 113 facilitates the smooth entry of high-pressure gas.

[0047] The angle between the central axis of the vent 114 and the rotation center of the end mill 1 is 20°-40°. The connection section between the vent 114 and the inlet 113 is higher than the vent 112 of the vent 114. The downward inclination of the vent 114 ensures that the gas blown out of the vent 112 blows downward, effectively removing graphite chips and ensuring that the chips are stuck in the end mill 1.

[0048] The rotating part 21 has at least four vents 213 that connect to the cavity 23. The air supply port 212 is connected to the cavity 23 through the at least four vents 213, and the at least four vents 213 are arranged around the central axis of the rotating part 21. When the rotating part 21 rotates, the gas in the cavity 23 is transported through the four vents 213, which improves the gas transport efficiency and ensures that high-pressure gas can be smoothly injected into the air inlet 111 from the air supply port 212.

[0049] In use, by arranging multiple air outlets 112 around the cutting edge and tilting the air outlet 114 downwards, the air blown out of the air outlets 112 can be directed downwards. The smaller diameter of the air outlet 114 can increase the pressure of the air blown out of the air outlet 114. The high-pressure air can directly blow away the graphite chips cut off by the bottom edge of the end mill 1 and can evenly blow out the chips around the cutting edge, ensuring that the graphite chips will not get stuck in the cutting edge gap of the end mill 1.

[0050] It should be noted that the above description illustrates the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A graphite flake chip cleaning system comprising a milling cutter and a cutter holder, the cutter holder being provided with a mounting head for fixing the milling cutter, characterized in that: the milling cutter is provided with a flushing hole, the flushing hole comprising an air inlet and an air outlet, the air inlet being arranged at the top of the milling cutter, and the air outlet being arranged at the periphery of the milling cutter; the cutter holder comprises a rotating part and a fixed part, the mounting head being arranged at the bottom end of the rotating part, and the fixed part being sleeved on the outside of the rotating part, a cavity being formed between the rotating part and the fixed part; the rotating part and the fixed part are provided with a rotating sealing structure, and the rotating part, the fixed part and the rotating sealing structure form an airtight cavity; the mounting head is provided with a gas supply port communicating with the cavity, the gas supply port communicating with the air inlet of the milling cutter in the mounting head; the fixed part is provided with a connecting port for connecting a high-pressure gas pipe, the connecting port communicating with the cavity, and further communicating with the flushing hole; the rotating sealing structure comprises two sealing bearings, the inner rings of the two sealing bearings being sleeved on the outer wall of the rotating part, and the inner wall of the fixed part sleeving the outer rings of the two sealing bearings, so that the outer wall of the rotating part, the inner wall of the fixed part and the two sealing bearings form the airtight cavity; the outer wall of the rotating part is provided with two annular grooves, and the two sealing bearings are embedded in the two annular grooves respectively; the inner wall of the fixed part is provided with two second annular grooves, and the two sealing bearings are sleeved in the two second annular grooves; the milling cutter comprises a cutting edge section and a mounting section, the cutting edge section being arranged below the mounting section; the flushing hole comprises an air inlet channel and an air outlet channel, the air inlet channel communicating with the air outlet channel, the inlet of the air inlet channel being the air inlet, and the outlet of the air outlet channel being the air outlet; the air outlet is arranged at the periphery of the cutting edge section; at least two layers of the air outlets are arranged on the cutting edge section, and each layer of the air outlets is arranged around the air inlet channel; the distance between the bottommost air outlet and the bottom surface of the milling cutter is 0.5-1 cm; the diameter of the air inlet channel is 0.25-0.5 cm, and the diameter of the air outlet channel is 0.1-0.2 cm; the air inlet channel extends along the rotation center of the milling cutter; the angle between the central axis of the air outlet channel and the rotation center of the milling cutter is 20°-40°, and the position of the connecting section of the air outlet channel and the air inlet channel is higher than the position of the air outlet of the air outlet channel; the mounting head is provided with a receiving groove for accommodating the mounting section of the milling cutter, the gas supply port being arranged at the bottom of the receiving groove, the gas supply port communicating with the cavity, and the gas supply port communicating with the air inlet of the milling cutter in the receiving groove; the receiving groove is provided with a sealing ring arranged between the milling cutter and the bottom of the receiving groove, the sealing ring being coaxially arranged with the gas supply port at the bottom of the receiving groove, and the inner diameter of the sealing ring being larger than the diameters of the gas supply port and the air inlet channel. ​ ​ ​ ​ ​ 2. The graphite flake swarf cleaning system of claim 1, wherein: ​ 3. The graphite flake swarf cleaning system of claim 2, wherein: ​ ​ 4. The graphite flake swarf cleaning system of claim 1, wherein: ​ ​ ​ ​ 5. The graphite flake swarf cleaning system of claim 4, wherein: ​ ​ 6. The graphite flake swarf cleaning system of claim 4, wherein: ​ 7. The graphite flake swarf cleaning system of claim 4, wherein: ​ 8. The graphite flake swarf cleaning system of claim 4, wherein: ​ 9. The graphite flake swarf cleaning system of claim 8, wherein: ​ 10. The graphite flake swarf cleaning system of claim 1, wherein: The rotating part is provided with at least four air inlets connected to the cavity, and the air supply port is communicated with the cavity through the at least four air inlets, and the at least four air inlets are arranged around the central axis of the rotating part.

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